2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

main relay

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Old Jan 10, 2009 | 11:57 PM
  #1  
turbo-111's Avatar
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10 pounds sounds so nasty
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From: N.C.
main relay

can some one please tell me the volts amps and if the relay is normally open or closed ? ive searched but every thing i find doesnt have what im looking for.
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Old Jan 11, 2009 | 06:39 AM
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HAILERS
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From: FORT WORTH, TEXAS,USA
It's open til you put the key to ON.
It has a ground on it's coil all day long.
The ENGINE fuse powers its coil thru the act of putting the key to ON or better.
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Old Jan 11, 2009 | 09:21 AM
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turbo-111's Avatar
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10 pounds sounds so nasty
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From: N.C.
thanks just wanted to make sure i had the right relay
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Old Jan 11, 2009 | 09:44 AM
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HAILERS
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From: FORT WORTH, TEXAS,USA
It''s near the Trai coil area and has two plugs. One has four wires and the other two wires. The two wire one is the ground and power for pulling it in

Pull that plug apart with the key to On and you should feel/hear the relay pull in if you put the plug back on the relay.

IF you have the key to ON and check either of the coil assy for power on their black/yellow wire and have it, that proves one circuit thru the Main Relay is good. Or as an alternative, crank the engine and see if the tach needle makes little movements. If it does, that circuit thru the Main Relay is good.

Of you have the key to ON and go to any of the solenoids on the vacuum rack, and have 12vdc on the black/white wire of those solenoid plugs, then the OTHER circuit in the Main Relay is good.
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